Anfinson, O. P. (1963). Understanding the physical sciences. Allyn and Bacon.
Lua i Stíl Chicago (17ú heag.)Anfinson, Olaf P. Understanding the Physical Sciences. Boston: Allyn and Bacon, 1963.
Lua MLA (9ú heag.)Anfinson, Olaf P. Understanding the Physical Sciences. Allyn and Bacon, 1963.
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